Combined die and reamer.



PATBNTBD Dma, 1903.

A. BRIEN. COMBINED DIE AND REAMER.

APPLIOATION FILED MAY 31 1902.

' N0 MODEL.

\ll l UNITED STATES I Patented December 8, 1903.

PATENT OFFICE.

ARTHUR OBRIEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO A RTHUR H. RUGG AND THOMAS G. MOGULLOH, OF CHICAGO, ILLINOIS.

COMBINED DIE AND REA'MERL SPECIFICATION formingpart ofLetters Patent No. 746,137, dated December 8, 1903.

I Application filed May 31,1902 Serial No. 109.619. (No model.)

To all whom it may concern;

Be it known that I, ARTHUR OBR EN, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a Combined Die and Reamer; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had tothe accompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to improvements in combined pipe dies and reamers. The object of the invention is to provide a simple, durable, and inexpensive device adapted for simultaneous use in a die-stock for'reaming the bore of the pipe during the operation of threading the same.

The invention consists in the matters hereinafter described, and more fully pointed out and defined in the appended claims. v

In the drawings, Figure 1 is a vertical longitudinal section of a die-stock provided with a device embodying my invention. Fig. 2 is a top plan view of the same. Fig. 3 is a per spective view of the reamer, showing the same removed from the die. Fig. 4 is a top plan view of the die fitted to receive the V reamer. Fig. 5 is a top plan view of the die and reamer, showing a slightly-modified adjustment of the reamer.

As shown in said drawings, A indicates a pipe-die stock, of the usual or any desired construction, provided with handles or levers a,which, as shown, consist of sections of pipe slit longitudinally at the inner end and adapted to be forced into oppositely-disposed sockets in the arms a a ofthe die-stock. 4o Said stock is provided with a seat in its top in the usual manner, adapted to receivethe angular die B or B, in which the reamer O is adapted to be rigidlybut removably secured. A die-plate D is secured on the stock by 5 means of set-screws or other suitable'means and engages over the die and reamer in position to hold the same in place' during the operation thereof. Said the may be of any desired type or construction and, as shown, consists of a rectangular mass of steel or other suitable metal apertured centrallyand provided on diametrically opposite sides with threading-cuttersb. Said die is notched at b on opposite sides and provided with recesses in its bottom, as shown in Figs. 1 and 4, to receive the reamer, the top of which rigidly engages therein and extends upwardly through the die. Said reamer, as shown, comprises a central blade-c of steel, which tapers downwardly toward its extrem- 6o ity and near its upper end has parallel sides providing four cutting edges. The maximum width of said'blade is approximately equal to the interior diameter or bore of the pipe to be reamed. Integral with the plate G at its upper end is a bar 0, which extends transversely of the blade and is provided with downwardly-extending arms 0 which fit closely in "the notches b in the die. Laterally-directed projections are provided at the lower ends of said arms which engage in the recesses beneath the die, as shown in Fig. '1. As shown, said blade at its top 'reamer will cease cutting. As shown in Figs.

1 and 2, the die-plate is provided on its upper surface with projections d d, which are recessed on their inner side to register with So the notches b in the die and which fit closely over thearms c of the reamer. Obviously, if preferred, the inner sides of the arms 0 may be provided with thread-cutters b to aid in producing the thread, as shown in Figs. 1 and 3, or the cutters thereon may be omitted and the inner surfaces of any desired shape and set back in the die sufficiently to avoid contact with the pipe during the threading operation. It is also obvious that, if desired, the recesses to receive Ihelateral project-ions may be provided in the bottom of the dievstock, in which case said recesses may be omitted from the under side of the die.

off with the effect of producing the usual inturned lip, owing to its taper, the reamer will not begin to out until after the die is firmly engaged on the pipe. After the cutting begins it will continue until the pipe is restored to itsnormal bore and will then cease. Owing to the construction described and the taper of the blade othe reaming is performed Very gradually as the thread is cutting, thus necessitating the expenditure of very little additional Work in performing both operations simultaneously.

Obviously many details of construction may be varied Without departing from the principles of this invention.

I claim as my invention 1. The combination with a pipe-die, of a reamer carried thereon, lateral arms thereon adapted to engage under the die and a plurality of cutting edges adapted to ream the interior of a pipe simultaneously with the threading of the exterior thereof.

2. The combination with a pipe-die having oppositely-disposed laterally-extended notches therein, of a reamer engaged in said notches and beneath the die comprising a downwardly-extending tapered bit axially disposed with respect to the die and adapted to ream the interior of the pipe during the threading operation.

3. The combination with a pipe-die having laterally-disposed interior notches, of a reamer having downwardly and laterally bent arms removably engaged in said notches and a blade extending downwardly and axially of the die and adapted to ream the pipe simultaneously with the threading thereof.

4. The combination With a die having oppositely-disposed notches in its interior, of a reamer provided with downwardly-projecting arms adapted to rigidly engage in said notches and beneath the die and acting to ream the pipe simultaneously with the threading thereof.

5. A reamer-die of the class described comprising a tapered 'blade, a downwardly-extending integral arm on each side thereof, thread-cutters on the inner side of each arm and means for engaging said arms at their extremity in a die-stock.

6. A reamer of the class described comprising a blade tapered at its lowerend and having parallel cutting sides, providing four cutting angles near its upper end, a die integrally secured thereon, a laterally-disposed die on each side thereof and spaced a distan'ce therefrom to permit the threading of a pipe simultaneously with the reaming of its interior.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing Witnesses.

ARTHUR OBRIEN.

Witnesses:

C. W. HILLS, ANNA B. HILLS. 

